Irina I.  Strelnikova, Sergey  Yu. Smolentsev, Alisya R.  Gabdrakhmanova, Alinya  R. Nurgalieva, Elmira  M. Kosacheva, Galina  S. Stepanova, Albina  V. Potapova, Leysan  V. Abdullina, Svetlana  N. Savdur,, Andrey  A. Rudenko, Olga  I. Shorkina, Ilsur G.  Galimzyanov, Nikita  V. Nikolaev, Evgeny  O. Krupin, 
    The Quality of Meat and Eggs of Laying Hens When Adding Succinic
Acid Drug to the Diet,
    Journal of Engineering and Applied Sciences,
    Volume 15,Issue 6,
    2020,
    Pages 1462-1464,
    ISSN 1816-949x,
    jeasci.2020.1462.1464,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2020.1462.1464)
    Abstract: Recently, the use of ecologically safe and biologically active elements and drugs that have a positive
impact on the biochemical, immunological, hematological and productive indicators of animals and birds have
become of great importance in their feeding. In this regard, the use of extracts of a number of plants, probiotics,
as well as organic acids and other additives of natural origin is of great interest. The studies were conducted
on laying hens of the cross Rodonit, 180 days of age, on the basis of the Department of Therapy and Clinical
Diagnostics of Kazan State Academy of Veterinary Medicine. The first group served as a biological control and
received only the basic ration. The drug Yantovet was added to the drinking water at a dose of 0.5 mL<sup>&#150;1</sup> bird
per day for 60 days in the experimental group. Studies have shown that the use of the drug based on succinic
acid and organic phosphorus in addition to the basic ration of laying hens showed a stimulating effect on egg
production while not having a negative impact on product quality.
    Keywords: Meat quality;egg quality;succinic acid;laying hens;safety;feed additive